Service Manual

CAUTION: See "Safety Instructions" before working inside your system.
NOTICE: See "Protecting Against Electrostatic Discharge."
1. Turn off the system, including any attached peripherals, and disconnect the AC power cable from its
power source.
2. Remove the front bezel, if one is present.
3. Remove the cover.
4. Locate the DIMM socket(s) in which you will replace memory modules.
Figure 15 shows the location and labeling of the DIMM sockets on the system board.
5. Replace the memory modules as necessary to reach the desired memory total.
6. When installing a memory module in DIMM3, perform the following steps:
a. Press down and outward on the right-hand ejector (the one nearest the microprocessor/heat-sink
assembly). The DIMM socket has two alignment keys that allow the DIMM to be installed in the
socket only one way (see Figure 16
).
b. Press the right-hand corner of the module into the DIMM3 socket (see Figure 16).
c. Holding the right-hand corner of the module in place, press down and outward on the left-hand
ejector and rotate the left-hand side of the module into position (see Figure 16
).
d. After you are sure that the module is centered in the socket, press down on the DIMM while
pulling up on the ejectors to lock the DIMM into the socket.
Figure 16. DIMM3 Installation